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RESEARCH PAPERS

Laminar Start-Up Flow in a Pipe

[+] Author and Article Information
D. R. Otis

University of Petroleum & Minerals, Dhahran, Saudi Arabia, and Department of Mechanical Engineering, University of Wisconsin, Madison-Wis. 53706

J. Appl. Mech 52(3), 706-711 (Sep 01, 1985) (6 pages) doi:10.1115/1.3169126 History: Received January 01, 1984; Revised September 01, 1984; Online July 21, 2009

Abstract

A numerical solution is presented for the laminar start-up flow in a circular pipe. It is an extension of the Szymanski solution to include a parameter accounting for the head that must be devoted to the acceleration of the flow. Velocity profiles, wall shear stress, mean velocity history, and start-up time constants are given as a function of the new parameter.

Copyright © 1985 by ASME
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